Israeli Leader Sees Rising Arab Threat

By

Joshua Mitnick

Updated May 17, 2011 12:01 am ET

TEL AVIV—Israeli Prime Minister Benjamin Netanyahu gave a stark assessment of how he sees changes in the Arab world threatening his country, warning of the potential for more clashes like the protests on Israel's borders that left 14 people dead Sunday.

Mr. Netanyahu, in a speech to parliament, also signaled Israel won't negotiate with a Palestinian government that includes the militant faction Hamas—his most explicit rejection yet of a recent truce between rival Palestinian factions that was forged under the pressure of Arab...